//
// Called from AddSymbol_ViewModel when a contract was selected from list, will add it to the listview
// then will subscribe to receive TWS real time (5s) data.
//
private async void AddSymbol_VM_ContractSelected_Event(object sender, ContractDetailsRecv_EventArgs e)
{
ContractData cd = new ContractData(e.ContractDetails.Contract);
Start(cd);
DB_ModelContainer db = new DB_ModelContainer();
db.DisplayedContracts.Add(cd);
await db.SaveChangesAsync();
}
public async Task DeleteFromDB()
{
DB_ModelContainer db = new DB_ModelContainer();
ContractData cData = db.DisplayedContracts.FirstOrDefault(c => c.Symbol == ContractDetails.Contract.Symbol &&
c.SecType == ContractDetails.Contract.SecType);
if (cData != null)
{
db.DisplayedContracts.Remove(cData);
await db.SaveChangesAsync();
ContractRemoved_Event?.Invoke(this, EventArgs.Empty);
}
}
public async void SaveToDB()
{
DB_ModelContainer db = new DB_ModelContainer();
ContractData cData = db.DisplayedContracts.FirstOrDefault(c => c.Symbol == ContractDetails.Contract.Symbol &&
c.SecType == ContractDetails.Contract.SecType);
if (cData == null)
{
ContractData cd = new ContractData(ContractDetails.Contract);
db.DisplayedContracts.Add(cd);
await db.SaveChangesAsync();
}
}